Qt不同类进行信号与槽建立,并传递参数

#include "Control.h" Control::Control(QObject *parent) : QObject(parent) { m_pTestA = new TestA; m_pTestB = new TestB; QObject::connect(m_pTestA, &TestA::sendDataFromTestA, m_pTestB, &TestB::recvDataAtTestB); QObject::connect(m_pTestB, &TestB::sendDataFromTestB, m_pTestA, &TestA::recvDataAtTestA); } Control::~Control() { if(m_pTestA) { delete m_pTestA; m_pTestA = nullptr; } if(m_pTestB) { delete m_pTestB; m_pTestB = nullptr; } } void Control::controlSendData() { m_pTestA->emitDataFromTestA(); m_pTestB->emitDataFromTestB(); }